International Center for Quantum Materials, School of Physics, Peking University, Beijing, 100871, China.
Collaborative Innovation Center of Quantum Matter, Beijing, 100871, China.
Adv Mater. 2023 Jul;35(27):e2110068. doi: 10.1002/adma.202110068. Epub 2022 Nov 28.
The advent of intense ultrashort optical pulses spanning a frequency range from terahertz to the visible has opened a new era in the experimental investigation and manipulation of quantum materials. The generation of strong optical field in an ultrashort time scale enables the steering of quantum materials nonadiabatically, inducing novel phenomenon or creating new phases which may not have an equilibrium counterpart. Ultrafast time-resolved optical techniques have provided rich information and played an important role in characterization of the nonequilibrium and nonlinear properties of solid systems. Here, some of the recent progress of ultrafast optical techniques and their applications to the detection and manipulation of physical properties in selected quantum materials are reviewed. Specifically, the new development in the detection of the Higgs mode and photoinduced nonequilibrium response in the study of superconductors by time-resolved terahertz spectroscopy are discussed.
强超短光脉冲的出现涵盖了从太赫兹到可见光的频率范围，为量子材料的实验研究和操控开辟了一个新纪元。在超短时间尺度内产生强光场可以非绝热地控制量子材料，诱导出可能没有平衡对应物的新现象或创造新相。超快时间分辨光学技术提供了丰富的信息，并在固体系统的非平衡和非线性性质的表征中发挥了重要作用。在这里，我们回顾了一些超快光学技术的最新进展及其在选定量子材料中物理性质的检测和操控中的应用。具体来说，我们讨论了在超导材料研究中通过时间分辨太赫兹光谱学检测希格斯模式和光致非平衡响应方面的新进展。
